Tetrabutylammonium Fluoride → HCID 44818263、化合物
反応式
CCCC[N+](CCCC)(CCCC)CCCC.[F-].[CH2:19]([C@:26]([OH:63])([CH2:43][CH2:44][O:45][Si](C(C)(C)C)(C1C=CC=CC=1)C1C=CC=CC=1)[C:27]([N:29]1[C@H:33]2[C:34]3[CH:35]=[CH:36][CH:37]=[CH:38][C:39]=3[CH2:40][C@H:32]2[O:31][C:30]1([CH3:42])[CH3:41])=[O:28])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>C1COCC1>[CH2:19]([C@:26]([OH:63])([CH2:43][CH2:44][OH:45])[C:27]([N:29]1[C@H:33]2[C:34]3[CH:35]=[CH:36][CH:37]=[CH:38][C:39]=3[CH2:40][C@H:32]2[O:31][C:30]1([CH3:42])[CH3:41])=[O:28])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1参加物
4
実験手順
TBAF (0.278 g, 1.06 mmol, 1M in THF) was added to a solution of (S)-2-benzyl-4-(tert-butyl-diphenyl-silanyloxy)-1-((3aS,8aR)-2,2-dimethyl-8,8a-dihydro-3 aH-indeno[1,2-d]oxazol-3-yl)-2-hydroxy-butan-1-one (21f) (0.33 g, 0.53 mmol) in THF (20 mL) at room temperature and stirred for 3 h. Solvent was evaporated and the residue dissolved in dichloromethane and washed with water, brine, dried and evaporated. The product purified by flash chromatography using petroleum ether:acetone (4:1) to get 0.145 g of the title product in 69% yield from two steps.